Which devices and calendar apps work with calfeeds?

calfeeds use the open iCalendar standard (ICS). You can therefore subscribe with practically any calendar app:

• iPhone & iPad: Apple Calendar, directly via the subscribe link. Guide
• Android: via the free calovo app (Android 8.0 or newer) or via your Google Calendar. Guide
• Google Calendar: add by URL in the browser, syncs to all devices. Guide
• Mac: Apple Calendar via “New Calendar Subscription”. Guide
• Outlook: on the web, in the new and in classic Outlook (“Subscribe from web”). Guide
• Thunderbird and others: any app with iCalendar support (“New Calendar” → “On the Network”).

Samsung devices work too: Samsung Calendar shows calendars you subscribed to via your Google account.

How do I spot the right option?

Wording differs per app. Look for options like “Subscribe”, “Add subscription calendar”, “From URL”, or “Subscribe from web”. Important: always pick the subscription – not the one-time file import, which never updates.